package com.lagou.dao.impl;

import com.lagou.dao.CourseDao;
import com.lagou.poji.Course;
import com.lagou.utils.DruidUtils;
import org.apache.commons.dbutils.QueryRunner;
import org.apache.commons.dbutils.handlers.BeanHandler;
import org.apache.commons.dbutils.handlers.BeanListHandler;

import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;

public class CourseDaoImpl implements CourseDao {


    @Override
    public List<Course> findCourseList() {

        try {
            QueryRunner qr=new QueryRunner(DruidUtils.getDataSource());
            //编写sql,判断是否删除
            String sql="select id,course_name,price,sort_num,status from course where is_del=?";

            List<Course> courseList = qr.query(sql, new BeanListHandler<Course>(Course.class), 0);
            return  courseList;
        } catch (SQLException e) {
            e.printStackTrace();
            return null;
        }


    }

    @Override
    public List<Course> findByCourseNameAndStatus(String courseName, String status) {

        try {
            QueryRunner qr=new QueryRunner(DruidUtils.getDataSource());

            StringBuffer sb=new StringBuffer("SELECT id,course_name,price,sort_num,STATUS FROM course WHERE 1=1 and is_del=? ");

            List<Object> list =new ArrayList<>();

            list.add(0);

            if(courseName!=null&&courseName!=""){
                sb.append("AND course_name LIKE ? ");

                courseName="%"+courseName+"%";

                list.add(courseName);

            }
            if(status!=null && status!=""){
                sb.append("AND STATUS = ? ");
                int i=Integer.parseInt(status);
                list.add(i);
            }
            List<Course> list1= qr.query(sb.toString(), new BeanListHandler<Course>(Course.class), list.toArray());

            return list1;

        } catch (SQLException e) {
            e.printStackTrace();
            return  null;
        }

    }


    //保存课程营销信息
    @Override
    public int saveCourseSalesInfo(Course course) {
        try {
            //1.创建QueryRunner
            QueryRunner qr=new QueryRunner(DruidUtils.getDataSource());

            //2.编写sql

            String sql="INSERT INTO course(\n" +
                    "course_name,\n" +
                    "brief,\n" +
                    "teacher_name,\n" +
                    "teacher_info,\n" +
                    "preview_first_field,\n" +
                    "preview_second_field,\n" +
                    "discounts,\n" +
                    "price,\n" +
                    "price_tag,\n" +
                    "share_image_title,\n" +
                    "share_title,\n" +
                    "share_description,\n" +
                    "course_description,\n" +
                    "course_img_url,\n" +
                    "STATUS,\n" +
                    "create_time,\n" +
                    "update_time" +
                    ")VALUES(?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)";
            Object[] param={course.getCourse_name(),course.getBrief(),course.getTeacher_name(),course.getTeacher_info(),course.getPreview_first_field(),course.getPreview_second_field(),
                    course.getDiscounts(),course.getPrice(),course.getPrice_tag(),course.getShare_image_title(),course.getShare_title(),course.getShare_description(),course.getCourse_description(),
                    course.getCourse_img_url(),course.getStatus(),course.getCreate_time(),course.getUpdate_time()};

            int row = qr.update(sql, param);
            return row;
        } catch (SQLException e) {
            e.printStackTrace();
            return 0;


    }
    }

    @Override
    public Course findCourseById(int id) {

        try {
            QueryRunner qr=new QueryRunner(DruidUtils.getDataSource());
            String sql = "SELECT \n" +
                    "id,\n" +
                    "course_name,\n" +
                    "brief,\n" +
                    "teacher_name,\n" +
                    "teacher_info,\n" +
                    "preview_first_field,\n" +
                    "preview_second_field,\n" +
                    "discounts,\n" +
                    "price,\n" +
                    "price_tag,\n" +
                    "course_img_url,\n" +
                    "share_image_title,\n" +
                    "share_title,\n" +
                    "share_description,\n" +
                    "course_description,\n" +
                    "STATUS\n" +
                    "FROM course WHERE id = ?;";
            Course course = qr.query(sql, new BeanHandler<Course>(Course.class), id);
            return  course;
        } catch (SQLException e) {
            e.printStackTrace();
            return null;
        }

    }

    @Override
    public int updateCourseSalesInfo(Course course) {
        try {
            QueryRunner qr = new QueryRunner(DruidUtils.getDataSource());

            String sql = "UPDATE course SET \n" +
                    "course_name = ?,\n" +
                    "brief = ?,\n" +
                    "teacher_name = ?,\n" +
                    "teacher_info = ?,\n" +
                    "preview_first_field = ?,\n" +
                    "preview_second_field = ?,\n" +
                    "discounts = ?,\n" +
                    "price = ?,\n" +
                    "price_tag = ?,\n" +
                    "share_image_title = ?,\n" +
                    "share_title = ?,\n" +
                    "share_description = ?,\n" +
                    "course_description = ?,\n" +
                    "course_img_url = ?,\n" +
                    "update_time = ?\n" +
                    "WHERE id = ?";

            Object[] param = {course.getCourse_name(),course.getBrief(),course.getTeacher_name(),course.getTeacher_info(),
                    course.getPreview_first_field(),course.getPreview_second_field(),course.getDiscounts(),course.getPrice(),course.getPrice_tag(),
                    course.getShare_image_title(),course.getShare_title(),course.getShare_description(),course.getCourse_description(),
                    course.getCourse_img_url(),course.getUpdate_time(),course.getId()};

            int row  = qr.update(sql, param);
            return row;

        } catch (SQLException e) {
            e.printStackTrace();
            return 0;
        }

    }

    @Override
    public int updateCourseStatus(Course course) {
        try {
            QueryRunner qr = new QueryRunner(DruidUtils.getDataSource());

            String sql = "UPDATE course SET STATUS = ? ,update_time = ? WHERE id = ?";

            Object[] param = {course.getStatus(),course.getUpdate_time(),course.getId()};

            int row = qr.update(sql, param);

            return row;
        } catch (SQLException e) {
            e.printStackTrace();
            return 0;
        }
    }
}
